The phrase "a singular source of" is correct and usable in written English.
It can be used to refer to a unique or one-of-a-kind origin or provider of something, often in contexts discussing information, resources, or influences.
Example: "The library serves as a singular source of knowledge for the community, offering access to rare books and archives."
Alternatives: "a unique source of" or "an exclusive source of".
The founder and owner of Lit Lounge, a singular source of some of the most embarrassing "I blacked out" moments in New York, the almost legendary Erik Foss also devotes a fair amount of his time and energy to supporting and creating art.
Nevertheless, even the sharpest critic would have to admit that for all its often juvenile nature particularly as conceived in the United States science fiction was a singular source of scientific wonder and discovery that inspired generations of scientists and engineers to pursue in reality what they had dreamed about in their youth.
Cars will be viewed less as a singular source of personal transportation and more as a piece of the evolving transit ecosystem.
The federal scheduling has been a singular source of frustration among marijuana activists for decades.
In this on-edge capital, weekly Mass is one of his parishioners' few consolations, a singular source of spiritual comfort.
A constant presence in our lives as we moved through childhood and adolescence, the Beatles became a singular source of intellectual, emotional, aesthetic and spiritual nurturance, creating a relationship between artist and audience that was, and will always be, historically unique.
We have a finite, singular source of willpower every day.
The Horticultural Society of New York was another singular source of joy in her volunteer life, combining her passion for prison reform issues (through its Rikers Island "Green Team" program) and a commitment to cultivating beauty for its own sake.
If it commits human rights abuses, it must be as subject to international condemnation as any other nation; but singling it out as the singular source of evil is so bizarre and contrary to truth that it achieves nothing except anger and derision.
In the final account, the Legalists' ability to provide the most compelling answers to this question became the singular source of their ideological appeal.
Commercial spaces are expensive to rent for galleries, and the cost of living continues to price artists out of keeping studios and making art their singular source of income.
